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ferraritoviper

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Do you think SRT Viper will do what the 2012/ZR1 did "...appease the EPA's sound limits...", by adding an 'Exhaust Flap' (over ridden by a fuse removal), as reported in the above Autoblog review?
 

TrackAire

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The article states:

"The engine remains untouched, but the ZR1's standard close-ratio manual gearbox has been tweaked for improved fuel economy. In a nutshell, fifth and six gears are now taller. According to Chevrolet, it should now deliver an additional two mpg on the highway cycle to earn an EPA estimated 14 mpg city / 21 mpg highway – an obvious exercise to pacify the Feds..."


Does this mean a 2010 Viper may be faster in a standing start mile run? Funny, the Gen 4 would fall on it's face when shifted into 5th until the 2010 model (with revised 5th gear) helped fix the problem a little, yet the Vette went the other direction.

Regarding the sound, I'm not a fan of it....I actually like the sound of a Z06 better.

Cheers,
George
 
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ferraritoviper

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It has a drone above 75; but, for $99.00 you can purchase a wireless device and open and close the valves as you like.

Thanks, but sorry my question wasn't clearer. Is it thought that the new 2012/2013 SRT Viper, will also have an "exhaust flap" (to appease EPA, etc etc), which the 2012 ZR1 has, as outlined in the above autoblog review
 

Twister

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Wait a second....thats ones 200 pounds lighter has a bigger engine with a better sounding exhaust and cost how much.


This is why im in a viper and not a vette
 

Camfab

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Wait a second....thats ones 200 pounds lighter has a bigger engine with a better sounding exhaust and cost how much.


This is why im in a viper and not a vette

Maybe I'm lost, but I'm not sure I understand your point..........................
by the way, both the Z-06 and the ZR-1 sound better than a Viper.

Anyway................to answer the original question. No I don't think the Viper will come with a baffle that opens up upon acceleration. Especially because the Viper is a side exhaust, now if the Gen V changes to a rear exit.......well it's anyone's guess.
 

viperbilliam

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I like the idling/low rpm of the Vette better but above 2500 rpm, I like the Viper's sound better - nothing like it.
 

johniew398

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Thanks, but sorry my question wasn't clearer. Is it thought that the new 2012/2013 SRT Viper, will also have an "exhaust flap" (to appease EPA, etc etc), which the 2012 ZR1 has, as outlined in the above autoblog review

I hope not; but, I guess it's ok if there is a way to open it up full time if you want to.
 

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